How to reduce map loading times in Zero Parades from 15s to 4s?

Map switching in Zero Parades took 15 seconds due to VRAM fragmentation. I tried restarting the game, but the lag returned after 30 minutes. I used GamePP System Backup & Configuration Export to clean fragmentation and tune allocation. 3DMark showed loading time dropping to 4s. GPU temps stayed at 65-70℃. I backed up this config for future use.